JeffGuKang

import { StatusBar } from 'expo-status-bar';
import React, { useRef } from 'react';
import { Animated, PanResponder, StyleSheet, Text, View } from 'react-native';
const SWIPE = 80;

export default function App() {
  const viewX = useRef(new Animated.Value(0)).current;
  const interpolateX = viewX.interpolate({
    inputRange: [-SWIPE, 0],
    outputRange: [-SWIPE, 0],

JeffGuKang

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.yourpackage">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.VIBRATION" />

    <application
      android:name=".MainApplication"

JeffGuKang

keytool -list -v -keystore ./android/app/debug.keystore -alias 'androiddebugkey' -storepass android -keypass android

JeffGuKang

import React, { ReactNode } from 'react';
import { Text, Platform, TextProps } from 'react-native';

interface Props extends TextProps {
  children: ReactNode;
}

const PublicText: React.FC<Props> = ({ style, children, ...props }: Props) => {
  const defaultStyle = Platform.select({
    ios: { fontFamily: 'AppleSDGothicNeo-Regular' },

JeffGuKang

{
	"editor.tabSize": 2,
	"editor.insertSpaces": true,
	"editor.detectIndentation": true,
	"cucumberautocomplete.steps": [
		// "test/features/step_definitions/*.js",
	],
	"typescript.validate.enable": false,
	"eslint.validate":  [
		"javascript",

JeffGuKang

[
    {
        "id": "bitcoin", 
        "name": "Bitcoin", 
        "symbol": "BTC", 
        "rank": "1", 
        "price_usd": "10262.639669", 
        "price_btc": "1.0", 
        "24h_volume_usd": "16983997056.0", 
        "market_cap_usd": "183579760947", 

JeffGuKang

/**
 * Resie and auto rotate
 * using https://github.com/blueimp/JavaScript-Load-Image
 * @param {file from input} file 
 * @param {number} maxSize 
 */
function ResizeImage(file, maxSize=1024) {
    return new Promise(function(resolve, reject) {
        if (window.File && window.FileReader && window.FileList && window.Blob) {            
            /**